delta female noun2 •A relatively low-status woman in the sociosexual hierarchy, (ranking below alpha, beta, and gamma females, but above omega females).If a DSM “lets herself go”—the phrase is one of the most horrible in the Delta female's lexicon—Mother will regard it as a reflection on herself. — 2009 •A female animal that ranks fourth in the social hierarchy.The alpha female moves through the tree and sits next to the delta female; she reaches for her infant, but the delta female turns her back. — 1968 formsdelta females